Dimensions of Physics Quantities NEET Questions

Physics - Physics and Measurement

Dimensions of Physics Quantities MCQ Questions


13.
The dimensions of gravitational constant G are ______________
A.
ML⁻³T²
B.
M⁻²L³T⁻²
C.
ML³T⁻²
D.
M⁻¹L³T⁻²
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ANSWER :
D. M⁻¹L³T⁻²
14.
The dimension of (1/2)ε₀E², where ε₀ is permittivity of free space and E is electric field, is:

NEET - 2010

A.
[ML⁻¹T⁻²]
B.
[ML⁻¹T⁻³A⁻¹]
C.
[ML⁻³T⁻²]
D.
[ML⁻²T⁻²]
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ANSWER :
B. [ML⁻¹T⁻³A⁻¹]
15.
The dimensional formula of velocity gradient is ______________
A.
None of these
B.
L⁻¹T
C.
L²T⁻²
D.
T⁻¹
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ANSWER :
D. T⁻¹
16.
Which physical quantity has dimensions [ML⁻¹T⁻²]?
A.
Impulse
B.
Momentum
C.
Power
D.
Stress
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ANSWER :
D. Stress
17.
The dimensions of torque are the same as those of ______________
A.
Force
B.
Work
C.
Energy
D.
Angular momentum
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ANSWER :
B. Work
18.
What is the SI unit of coefficient of viscosity?
A.
kg m⁻² s
B.
kg m s⁻²
C.
kg m⁻¹ s⁻¹
D.
kg m s⁻¹
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ANSWER :
C. kg m⁻¹ s⁻¹